A Global Leader in Electronic Pressure & Flow Control

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Proportion-Air is a US-based manufacturer with a global reputation for quality and excellence in industrial automation. We seek to understand every customer’s application and build a product tailored to the specific process. We build our products to your specifications whether you need one device or thousands. Offering free application and technical support, we strive to quote within 6 hours of understanding your needs.

About Proportion-Air

Proportion-Air, Inc. manufactures electronic air pressure regulators and air flow control valves. Proportion-Air products are recognized globally for precise control in a variety of applications and markets – learn more